A circular park of radius 20m is situated in a colony. Three boys Ankur, Syed and David are sitting at equal distance on its boundary each having a toy telephone in his hands to talk each other. Find the length of the string of each phone.
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Electricity and Circuits | Exercise
Q3) Explain why the bulb would not glow in the arrangement shown in Fig.12.13. ... The tester holder is made of plastic which is a bad conductor of electricity. Thus current cannot flow through the circuit. Hence, the bulb would not glow.
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The length of the string of each phone is 20✓3m
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